3 + √x + 19 - √2x when x = 6?

👨🏻‍🏫 學術台數學

[匿名]

2016-03-17 10:57 am

回答 (1)

fooks

2016-03-17 11:03 am

✔ 最佳答案

When x = 6

3 + √x + 19 - √(2x)
= 3 + √6 + 19 - √(2 * 6)
= 3 + 19 + √6 - √(2² * 3)
= 22 + √6 - 2√3
≈ 20.9854 (to 6 sig. fig.)

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